I'm working with a 2008 Trailblazer SS E67 and want to use ECM C3 pin 66 and C3 pin 67 for VSS high and VSS low because of a manual transmission application. While this looks good on paper, I'm not seeing a VSS signal in the scan tool.
Has anyone eliminated the T42 (which has a VSS output to ECM C3 66), used a manual transmission, and a VSS signal directly to the ECM?
This is not yet installed in a vehicle, but being tested on the bench.